脑袋瓜

kàn kàn wǒ de nǎo dai guā ba

看看我的脑袋瓜吧。

Look at my bull head.

wǒ yào ràng nǐ de nǎo dai guā biàn cōng ming

我要让你的脑袋瓜变聪明。

I'm going to get some brains into that head of yours.